of leipzig-plagwitz



June 1931. M. EHRICKE OPERATOR FO R AGRICULTURAL CULTIVATING IMPLEHENTS Filed May 24', 1925 .2 Sheets-Sheet 1 Inventor. 1/644 MM-'06 M. EHRICKE 1,807,731

OPERATOR FOB. AGRICULTURAL CULTIVATING IIPLEIENTS June 2, 1931.

Filed May 24, 1926 2 Sheets-Sheet 2 m ,0 m M 3 .N MQ KN Imrenior; v10 away/u y: M

lttorncy PatentedJune 2, 1931 4 UNITED STATES PATENT OFFICE MAX EHRICKE, OF LEIPZIG-PLAGWITZ, GERMANY, ASSIGNOR 1'0 THE FIRM RUD.SACK,

F LEIPZIG-PLAGWITZ, GERMANY OPERATOR FOR AGRICULTURAL cnn'nvnmme IMPLEMENTS Application filed May 24, 1926, Serial No. 111,327, aim in Germany February 17, 1926.

This invention relates to tractor ploughs bearing member 7, said bolt carryand more particularly to a novel arrangeing the fork' shaped holder 11, to WlllCll the ment of couplings for wheelless implements frame 12 of the soil treating implement is serving for the treatment of the soil which secured.

5 may especially be adapted, for instance, The upwardly extending arm 13 of the for so-called hill-side ploughs reversing lever 4 is connected by means of a chain 14 ploughs or turnwrest ploughs. According to a lever 15 fast on the shaft 16 which is to my invention the advantages of the mounted within the frame of the tractionwheelless construction of the soil treating engine, as indicated in Fig. 2, by means of w implement will be fully utilized, said adthe bearings 33. Theshaft 16 as may be seen vantages consisting in the possibility of from Fig. 2 carries two further levers 17 easily turning or reversing the motion of which are equipped at their extremities with the plough. weights 18, serving as a'counter-weight' for My invention is illustrated by way of balancing the weight of thesoil treating 15 example in the accompanying drawings, implement supported by the lever or supwhereln porting arm 4. The weights 18 may obvi- Fig. 1 is a side view of a hill-side plough, ously be replaced by springs. By means of reversing plough or the like with the new the chain 14 the coupling member 2 may be coupling by means of which the wheeless swung in an horizontal plane around the implement serving for the treatment of the bolt 1.

soil may be lifted and lowered, the traction Fixed to the rear part of the tractorengine being shown With one of its rear frame is a forked arm 19 and an interme- Wheels taken off, diate the fork of the arm 19 there is pivotal- Fig. 2 a plan-view take n on Fig. 1, and 1y mounted a supporting body 20 for the Fig. 3 a-detail view of" the device serving threaded spindle 21 in such a manner, that for the lateral adjustment of the ploughsaid supporting body may be rotated in a shares of said wheelless implement. vertical plane. The spindle 21 is held Referring-now more particularly to the against longitudinal displacement by means drawings, on the rear part of the traction of the collars 22 and engages with a nut 23, engine 32 there is shown the coupling memwhich is mounted on a bracket 24, secured her 2 which is secured to said tractor by to one of the weighted levers 17. The nut means of the bolt 1 to permit swinging of 23 may be rotated in a vertical plane within said coupling member in an horizontal said bracket 24. By rotating the spindle plane. A triple-armed lever 4 or support- 21 by means of the crank-lever 25, the one 35 ing arm is pivoted by means of the bolt 3 of the weighted levers 17 will be adjusted. to said coupling member 2 in such a manner, By this the shaft 16 will be rotated and at that said lever may be swung in a vertical the same time by the aid of the lever 15 and plane. The arm 5 of the lever 4 carries a the chain 14 a swinging of the lever or arm bolt 6, by means of which the bearing mem- 4 together with the bearing member 7 and her 7 is mounted in such a manner, that it the holder 11 will be effected. In this manmay also be rotated in a vertical plane. ner the soil treating implement is thrown This bearing member 7 is shaped at its forinto or out of engagement with the ground. ward end in the manner of a fork 8 which The reversing of the soil treating implecarries a pivot or bolt 9 serving as a stop for ment, for changing the direction of opera-- limiting the swinging, motion of the beartion is effected by means of a mechanical ing member 7 towards the lever 4. The device, which is formed by a worm-wheel support for the soil treating implement is 26, rigidly secured to the bolt 10, and a worm therefore composed of the triple-armed lever 27, meshing with said worm-wheel and 4, the bearing-member 7 and the fork 8. ada ted to be rotated by a crank-lever 28. The bolt 10 is rotatably mounted within said The frame 12 of the soil treating implecrank-lever 28, that the stop 29 provided on the holder 11, will engage with one of the two adjustable dogs 30, which limit the range of movement of said frame and therewith of the soil treating implement. The dogs 30 can be adjusted by means of the threaded spindles 31 which are provided with crank-levers as shown in Fig. 3. By this the plough-shares forming part of the soil treating implement may be adjusted to a different operative position.

In order to bring the soil treating implement from its position for transportation, as shown in Fig. 1 in full lines, into its position for operation, the driver of the traction-engine will have to rotate the cranklever 25 in such a manner, that the weighted lever 17 will be swung in upward direction, whereby the lever 15 as well as the lever 4 which is connected thereto by the chain 14, will be swung in downward direction. In consequence thereof the soil treating implement which is supported by the lever 4 will come in engagement with the ground by action of gravity. The extent to which the plough-shares provided on said implement penetrate into the ground may be varied by properly adjusting the spindle 21. The position of the stop or pivot 9 is so chosen, that it will rest against the supporting arm 4 in every position of the soil treating implement which is intermediate its uppermost position, that is the position of transportation, and that position which will be assumed by said implement during ploughing to the smallest possible depth. If it is intended to plough to a greater depth, the soil treating implement will remain'in horizontal position, while the stop, 9 is at a certain distance from the supporting arm or lever 4. At the end of the furrow the weighted lever 17 is returned into the position for transportation by rotating the spindle 21 by means of the crank-lever 25. Reversing of the soil treating implement may be accomplished. by rotating the crank-lever 28.

I claim:

'1. A device to be used in connection with traction engines for agricultural implements serving for the treatment of the soil, said device comprising an agricultural implement, a support mounted rotatably in a vertical plane on a traction engine, means for fixing said agricultural implement to said.

support so that the total welght of said implement will be transmitted to said support in raised condition of said implement, and

lifting means adapted to acton said support to so adjust the'latter that it will carry said implement in freely lifted condition.

2. A device as specified lay claim 1 having a support which is rotatable also in an horizontal plane, lifting means in the form of an adjusting lever, and a'chain interposed a support-carried by a traction-engine and adapted to secure said implement to said traction-engine, means whereby said support may be swung in a vertical as well as in an horizontal plane, a pivotally mounted lever carrying a counter-weight, a threaded spindle operatively connected with said lever, said support including two parts which are pivotally connected with each other, and a stop adapted to limit the relative motion between said parts.

4. A device as specified by claim 1, wherein the implement consists of a plough member which is mounted rotatably around its longitudinal axis.

5. A device as specified by claim 1, wherein the implement consists of a ploughmember mounted rotatably around, its longitudinal axis, said device including a frame associated with said implement, and a holder for said frame, said holder bein mounted rotatably around the axis of rotation of said implement.

6. A device as specified by claim 1, wherein the implement consists of a plough memher which is mounted rotatably around its longitudinal axis, said device including a frame forming part of said plough member, a holder for said frame, said holder being mounted rotatably around the axis of rotation of said plough-member, a pair of adjustable stops adapted to limit motion of said holder, and a crank-lever connected by means of a gearing device to said holder and permitting the rotation of said holder and said implement. a 

